T900 SERIES
INPUT VOLTAGE: 120 or 208-277VAC, 60 Hz,
varies by model.
TIMING ACCURACY: Line frequency.
TERMINAL RANGE: #8 - #14AWG.
APPLICATIONS
TYPE
VOLTAGE
CONTACT
RATING
General Purpose
120/277VAC
20A
Motor
120VAC
240VAC
1HP
2HP
OPERATING TEMPERATURE:
-40˚ to 165˚F (-40˚ to +74˚C).
CALIFORNIA Title 24
ASHRAE 90.1
Parking lot lighting
HVAC
Display lighting
Security lighting
Lighted signage
Storefront lighting
CONTACT RATINGS
SPECIFICATIONS
PHOTOELECTRIC & 7 DAY CONTROL COMBO
DIFFERENT SCHEDULES EACH DAY
RESERVE POWER STANDARD
2 & 3 CIRCUIT LIGHTING
CONTROL CENTERS
POWER CONSUMPTION: 5 watts maximum.
ENCLOSURE: Indoor NEMA 1 Metal with
lockable hasp. Other enclosures include cover
for access to by-pass switches with suffix "E" or
Indoor/Outdoor NEMA 3 metal with suffix "O"
(see page 153 for enclosure dimensions).
Optional "E" cover
Model 2101
supplied with unit.
WIRING DIAGRAMS
T930L
T930L
T920L
T920L
ONLYCIRCUITS
CIRCUITS1 1AND
AND2 2ARE
AREINCLUDED
INCLUDEDININT920L
T920L
ONLY
ORDERING INFO
FEATURES
CATALOG
NO.
SCHEDULING:
CIRCUIT 1: ON automatically at dusk, OFF at
individual preset times each day, including
skipping days when desired. Unit can be set to
turn ON before dawn for early morning lighting.
CIRCUIT 2: ON at dusk, OFF at dawn
automatically, daily.
CIRCUIT 3: Individual daily ON and OFF settings
at desired times, including skipping any desired
day or days Minimum ON is setting 1 hour with
a minimum OFF setting of 2 hours. Minimum 8
hours between 2 OFF settings. 7 day calendar dial
will accommodate up to 2 pairs of ON-OFF trippers
per day – 7 pairs are supplied.
SKIP-A-DAY: Omit operations on any day.
UPC
CODE
INPUT SUPPLY
(VAC) 60Hz
41033
120
2 SPDT
T920L-E
41034
120
2 SPDT
T920L-O
41035
120
2 SPDT
T930L
41055
120
3 SPDT
T930L-E
41056
120
3 SPDT
T930L-O
41057
120
3 SPDT
Metal Indoor
NEMA 1
Metal Indoor NEMA
1 with switch access
Metal Indoor/outdoor
NEMA 3
Metal Indoor
NEMA 1
Metal Indoor NEMA
1 with switch access
Metal Indoor/outdoor
NEMA 3
ON ON OFF OFF
ON ON OFF OFF
AUTO
AUTO
AUTO
AUTO
SWITCH
TIMETIME
SWITCH
OFF OFF ON ON
MM
C C
NOTE:
NOTE:
Contacts
7-12
Contacts
7-12
unpowered.
areare
unpowered.
RELAY
RELAY
PHOTOELECTRIC
PHOTOELECTRIC
CONTROL
CONTROL
ON ON OFF OFF
ON ON OFF OFF
ON ON OFF OFF
AUTO
AUTO
AUTO
AUTO
AUTO
AUTO
NOTE:
NOTE:
Contacts
4-12
Contacts
4-12
unpowered.
areare
unpowered.
RELAY
RELAY
C C
PHOTOELECTRIC
PHOTOELECTRIC
CONTROL
CONTROL
MM
CONTACTOR
CONTACTOR
CONTROL
CONTROL
CIRCUIT LINELINE
CIRCUIT
RED RED
WHITE
WHITE
BLACK
BLACK
L1 L1
OPEN
CLOSEOPEN LINELINE
CLOSE
1 1
CONTACTOR
CONTACTOR
CONTROL
CONTROL
CIRCUIT
CIRCUIT
1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12
1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12
H 120V
H 120V
N N
60C 60C
LINELINE
TIME
TIME
SWITCH
SWITCH
TO DAWN
SAFETY
LIGHTS
DUSKDUSK
TO DAWN
SAFETY
LIGHTS
(PHOTOCELL
- PHOTOCELL
(PHOTOCELL
ON - ON
PHOTOCELL
OFF) OFF)
NEU.NEU.
OPEN
OPEN
CLOSE
CLOSE
H 120V
H 120V
N N
60C
BLACK 60C
BLACK
LINELINE
WHITE
WHITE
RED RED
2 2
L1 L1
LINELINE
OPEN
OPEN
OPENLINELINE
OPEN
CLOSE
CLOSE
CLOSE
CLOSE
3 3
1 1
TO DAWN
SAFETY
LIGHTS
DUSKDUSK
TO DAWN
SAFETY
LIGHTS
(PHOTOCELL
- PHOTOCELL
(PHOTOCELL
ON - ON
PHOTOCELL
OFF) OFF)
2 2
NEUNEU
OPEN
OPEN
CLOSE
CLOSE
LOAD
LOAD
LOAD
LOAD
#P69 for 7 pairs of ON/OFF trippers.
#36 (120V)
#66061
RESERVE POWER: Standard feature on all
models keep dial on time up to 24 hours during
power outage.
NOTE: All models are designed to control a contactor circuit and are not recommended for direct switching of most lighting loads.
TORK 45
ENCLOSURE
TYPE
OUTPUT
CONTACTS
MANUAL BY-PASS SWITCHES: Single pole,
20 Amps – one per circuit. Factory pre-wired to
terminal strip. ON/OFF/AUTO positions for each
circuit is independent – will not disturb automatic
settings.
ELECTROMECHANICAL
CONTROLS
MANUAL
CONTROLS
MANUAL
CONTROLS
MANUAL
CONTROLS
MANUAL
CONTROLS
T920L
Replacement
Trippers
Replacement
Motor
Replacement
Bypass Switch
ALL3 3CIRCUITS
CIRCUITSARE
AREINCLUDED
INCLUDEDININT930L
T930L
ALL
A DIVISION OF
NSi INDUSTRIES, LLC
USA • 800.321.5847 • www.nsiindustries.com
SPECIFICATION WRITER’S GUIDE
T900 SERIES – Furnish and install, where shown, a TORK Photo/Time Control of the 7 Day Calendar dial type, which shall be suitable to operate mechanicallyheld contactor(s). Photo/Time Control shall be pre-wired to a central terminal block which provides connecting terminals for Photocontrol and independent
contactor control circuit(s). Time switch shall function to prevent energization of lighting for preset periods each day. Time switch dial shall permit different
ON/OFF settings for each day of the week, with provision for omitting selected days. Control shall include pre-wired manual switching for each contactor circuit
specified. Enclosure shall be NEMA 1 surface. Photocontrol to be remotely installed in appropriate outside location. It shall be fully temperature compensated
and shall provide for time delay of at least 15 seconds to prevent false switching. Photocontrol shall operate control center to energize whenever natural lighting
falls below 1.5 - 5.5 foot candles turn on. Spring driven reserve timing motor shall be provided sufficient to operate time switch controls at least 24 hours after
power failure. On restoration of power, time switch shall transfer to synchronous motor drive and automatically rewind reserve power unit. FOR DUSK-TO-DAWN
LIGHTS: Control shall provide additional contactor circuit to above specifications except that it shall be responsive to Photocontrol only. Tork Model T-920L or
equal. FOR PRESET ON/PRESET OFF: Control shall provide for additional contactor circuit to above specification except that it shall be responsive to time switch
only. Tork Model T-930L.
TORK 46